README.md

@@ -1,15 +1,32 @@
 # ketotrack
-Simple ketosis tracker written in Go.
+Simple GKI calculator written as an exercise in learning Go.
 
-## Features
-- Record your blood glucose and ketone levels
-- Record notes about things that might affect your ketosis
+Currently, this only calculates your GKI and stores the results into a JSON file. At some point I'll get around to
+implementing note-taking and time-series display.
 
-Reading data will be saved to `$HOME/.ketotrack/records.json` and graphing will be implemented at a later date.
+## Usage
+After measuring your blood glucose and blood ketone levels, run `ketotrack`. GKI will be displayed along with
+the level of ketosis you are in according to [Keto-Mojo](https://keto-mojo.com/glucose-ketone-index-gki/):
+```
+Enter glucose reading (mg/dL): 77
+Enter ketone reading (mmol/L): 1.1
+
+Your GKI is: 3.89
+You're in a moderate level of ketosis.
+```
+
+Reading data will be saved to `$HOME/.ketotrack/readings.json`.
 
 ## Building and Installing
-At some point I'll include a Makefile, until then manually build and copy to any directory in your path.
 ```shell
 go build
 mv ketotrack $HOME/.local/bin
-```
+```
+
+## Refactoring Notes
+- [X] Create `Record` and `Note` struct types
+- [X] Add `GKI` field to `Reading` struct type
+- [X] Encapsulate application data with an `AppContext` struct that holds a `Records` slice
+  - [X] `LoadRecords`, `SaveRecords`, `AddReading`, `AddNote` receiver methods
+- [X] Add interactive menu for adding either a `Note` or a `Record`
+- [ ] Standardize method names for getting user input to `handleNewNote` and `handleNewReading`

main.go

@@ -116,6 +116,8 @@ func (ctx *AppContext) AddNote(note Note) {
 }
 
 func main() {
+	// TODO: Clean up menu prompt
+	// TODO: Write getNote method
 	// TODO: Write option handlers (handleNewNote, handleNewReading)
 
 	var appCtx AppContext
@@ -143,14 +145,29 @@ func main() {
 			if err != nil {
 				fmt.Printf("Error getting reading: %s\n", err)
 			} else {
+				// Display GKI and level of ketosis
+				fmt.Printf("\nYour GKI is: %0.2f\n", reading.GKI)
+				switch {
+				case reading.GKI <= 1:
+					fmt.Println("You're in the highest level of ketosis.")
+				case reading.GKI < 3:
+					fmt.Println("You're in a high therapeutic level of ketosis.")
+				case reading.GKI < 6:
+					fmt.Println("You're in a moderate level of ketosis.")
+				case reading.GKI <= 9:
+					fmt.Println("You're in a low level of ketosis.")
+				default:
+					fmt.Println("You are not in ketosis.")
+				}
 				appCtx.AddReading(reading)
 			}
 		case "2":
 			// Get a new Note from the user
-			note, err := getNote()
+			noteText, err := getUserInput("Enter your note text: ")
 			if err != nil {
 				fmt.Printf("Error getting note: %s\n", err)
 			} else {
+				note := NewNote(noteText)
 				appCtx.AddNote(note)
 			}
 		default:
@@ -164,14 +181,6 @@ func main() {
 	}
 }
 
-func getNote() (Note, error) {
-	text, err := getUserInput("Enter note text")
-	if err != nil {
-		return Note{}, err
-	}
-	return NewNote(text), nil
-}
-
 func getReading() (Reading, error) {
 	// Get glucose reading
 	glucose, err := getUserFloat("Enter glucose reading (mg/dL)")
@@ -196,24 +205,7 @@ func getReading() (Reading, error) {
 		return Reading{}, errors.New("ketone reading cannot be less than 0")
 	}
 
-	reading := NewReading(glucose, ketone)
-
-	// Display GKI and level of ketosis
-	fmt.Printf("\nYour GKI is: %0.2f\n", reading.GKI)
-	switch {
-	case reading.GKI <= 1:
-		fmt.Println("You're in the highest level of ketosis.")
-	case reading.GKI < 3:
-		fmt.Println("You're in a high therapeutic level of ketosis.")
-	case reading.GKI < 6:
-		fmt.Println("You're in a moderate level of ketosis.")
-	case reading.GKI <= 9:
-		fmt.Println("You're in a low level of ketosis.")
-	default:
-		fmt.Println("You are not in ketosis.")
-	}
-
-	return reading, nil
+	return NewReading(glucose, ketone), nil
 }
 
 func getUserInput(prompt string) (string, error) {